RESULTS

(7)

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DISEASE: Bacterial fasciation (Shoot proliferation)

HOST: Campanula

Overproduction of new shoots and short, thickened, distorted stems.

Bacterial fasciation (Shoot proliferation) | Campanula

DISEASE: Bacterial fasciation (Shoot proliferation)

HOST: Campanula (Campanula sp.)

PATHOGEN: Rhodococcus fascians

SOURCE: M. Putnam

DISEASE: Bacterial fasciation (Shoot proliferation)

HOST: Candytuft

The disease causes production of multiple shoots.

Bacterial fasciation (Shoot proliferation) | Candytuft

DISEASE: Bacterial fasciation (Shoot proliferation)

HOST: Candytuft (Iberis sp.)

PATHOGEN: Rhodococcus fascians

SOURCE: M. Putnam

DISEASE: Dogwood stunt

HOST: Dogwood

Diseased plant with small leaves (left).

Dogwood stunt | Dogwood

DISEASE: Dogwood stunt

HOST: Dogwood (Cornus sp.)

PATHOGEN: 'Candidatus Phytoplasma asteris'

PATHOGEN SYNONYM: Phytoplasma Aster yellows group

SOURCE: W. Sinclair

DISEASE: Purple stain

HOST: Papaya

Purple pigmentation of internal tissues near peduncle end of fruits. Pigmentation and yellow translucence of papaya flesh are more evident of fruit on right.

Purple stain | Papaya

DISEASE: Purple stain

HOST: Papaya (Carica papaya)

PATHOGEN: Pantoea agglomerans

PATHOGEN SYNONYM: Erwinia herbicola

SOURCE: M. Nelson

DISEASE: Purple stain

HOST: Papaya

Purple pigmentation of internal tissues.

Purple stain | Papaya

DISEASE: Purple stain

HOST: Papaya (Carica papaya)

PATHOGEN: Pantoea agglomerans

PATHOGEN SYNONYM: Erwinia herbicola

SOURCE: M. Nelson

DISEASE: Purple stain

HOST: Papaya

Another view of purple discoloration at peduncle end. Bacteria are found in vascular tissues and latex ducts.

Purple stain | Papaya

DISEASE: Purple stain

HOST: Papaya (Carica papaya)

PATHOGEN: Pantoea agglomerans

PATHOGEN SYNONYM: Erwinia herbicola

SOURCE: K. Nishijima

DISEASE: Purple stain

HOST: Papaya

Cross section of fruit exhibiting purplish discoloration in latex ducts.

Purple stain | Papaya

DISEASE: Purple stain

HOST: Papaya (Carica papaya)

PATHOGEN: Pantoea agglomerans

PATHOGEN SYNONYM: Erwinia herbicola

SOURCE: M. Nelson, A. Alvarez